CN204229283U - Valve actuator handwheel - Google Patents
Valve actuator handwheel Download PDFInfo
- Publication number
- CN204229283U CN204229283U CN201420369159.6U CN201420369159U CN204229283U CN 204229283 U CN204229283 U CN 204229283U CN 201420369159 U CN201420369159 U CN 201420369159U CN 204229283 U CN204229283 U CN 204229283U
- Authority
- CN
- China
- Prior art keywords
- worm shaft
- axial force
- worm
- ring
- valve actuator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of valve actuator handwheel, the dynamometry assembly comprising hand wheel shaft assembly and be connected with hand wheel shaft assembly, described dynamometry assembly comprises the worm screw mount pad (18) be arranged on main casing (17), in worm screw mount pad (18), be provided with worm shaft (15), be provided with between worm shaft (15) and worm screw mount pad (18) and measure sensing mechanism and worm screw stationary installation.The utility model carrys out alternative original mechanical force measurer by utilizing axial force transducer, accurately can measure the size of axial force suffered by worm shaft, and measuring accuracy by the impact of temperature, does not realize the partial installation of handwheel simultaneously, improves efficiency of assembling.
Description
Technical field
The utility model relates to handwheel, especially valve actuator handwheel.
Background technology
Valve actuator field handwheel uses when being all generally manual operation under powering-off state, utilizes worm screw to drive worm gear to rotate, is then exported by main shaft.When motor works, in order to prevent electromotor overload, need to judge the size of axial force suffered by worm screw, if axial force is excessive, then central processing unit will make electric motor circuit breaking, quits work.
At present in valve actuator field, the general size adopting the method for machinery to judge axial force, it is the size being calculated axial force by the deflection measured after the disc spring be contained on worm shaft is subject to axial force, the axial force size out of true measured in this way, because when several disc spring is stitched together, their deflection and the size of suffered axial force linearly do not change; Disc spring is installed in main casing in addition, the inside is full of lubricating oil, during actuator work, the temperature of lubricating oil is the highest can reach 80 ° of C, and the temperature of sometimes starting working at the northern area of China actuator is minimum-30 ° of C, the impact of temperature on the elasticity coefficient of disc spring is very large, and the axial force of this measurement device so also can be made inaccurate, and this mechanism more complicated, install very difficult, functional reliability is poor.
Utility model content
The technical problems to be solved in the utility model be valve actuator of the prior art adopt be machinery method to judge the size of axial force, and the axial force size out of true that this method is measured, easy temperature influence, and mechanism is complicated, install very difficult, functional reliability is poor.
For solving the problems of the technologies described above, the technical scheme that the utility model provides is as follows:
The utility model valve actuator handwheel, the dynamometry assembly comprising hand wheel shaft assembly and be connected with hand wheel shaft assembly, described dynamometry assembly comprises setting worm screw mount pad on a main housing, in worm screw mount pad, be provided with worm screw, be provided with between worm screw and worm screw mount pad and measure sensing mechanism and worm screw stationary installation.By arranging measurement sensing mechanism between worm screw and worm screw mount pad, when worm screw is subject to axial force, the size of axial force can be induced by measuring sensing mechanism.
As preferred version of the present utility model, measure sensing mechanism and comprise the end sensing device that is positioned at worm shaft front end and be positioned at the middle part sense measuring device matched with end sensing device in the middle part of worm screw.When worm screw is subject to axial force, the size of axial force can be induced by the end sensing device and the middle part sense measuring device be positioned in the middle part of worm screw being positioned at worm shaft front end.
As preferred version of the present utility model, middle part sense measuring device comprises the axial force transducer be nested with in the middle part of worm screw, is respectively arranged with the first detecting means and the second detecting means in the axial force transducer left and right sides.Axial force suffered by worm screw, senses on axial force transducer by the first detecting means or the second detecting means, and induce a resistance after axial force transducer is stressed, resistance size can be transferred to central processing unit, thus induces the size of axial force.
As preferred version of the present utility model, first detecting means comprises the first needle thrust bearing be nested with on worm screw, the first disc spring and the first back-up ring, first needle thrust bearing is positioned on the left of axial force transducer, and the first back-up ring is pressed on the first needle thrust bearing from left side by the first disc spring.First disc spring is impacted to reduce.When worm shaft be subject to axial force to the right time, worm shaft has the trend moved right, worm shaft end back-up ring by male splines cover, the first disc spring, the first disc spring back-up ring, the first needle thrust bearing axial force transmission to the inner ring of axial force transducer, the outer ring of axial force transducer is fixed by worm shaft mount pad, the Internal and external cycle of axial force transducer is had by the trend compressed, thus induces the size of axial force.
As preferred version of the present utility model, second detecting means comprises the second needle thrust bearing be nested with on worm screw, the second disc spring and the second back-up ring, second needle thrust bearing is positioned on the right side of axial force transducer, and the second back-up ring is pressed on the second needle thrust bearing from right side by the second disc spring.Second disc spring is impacted to reduce.When worm shaft is subject to axial force left, worm shaft has the trend be moved to the left, its shaft shoulder will be pressed onto the second disc spring on worm shaft, second disc spring can give axial force transducer by the second back-up ring, the second needle thrust bearing axial force transmission, the outer ring of axial force transducer is fixed by sensor gland, the Internal and external cycle of axial force transducer is made to have by the trend compressed, a resistance is induced after axial force transducer is stressed, resistance size is judged by central processing unit, thus draws the size of axial force.
As preferred version of the present utility model, also comprise sensor gland, sensor gland is arranged on worm shaft mount pad front end, is fixed on worm shaft mount pad by axial force transducer from left side.The outer ring of axial force transducer is fixed by sensor gland, the Internal and external cycle of axial force transducer is had by the trend compressed, thus induces the size of axial force.
As preferred version of the present utility model, end sensing device comprises male splines cover, worm shaft end gib screw, worm shaft end back-up ring, the first flat key and inner spline housing, first flat key is arranged in the keyway of worm shaft front portion, it is outside that male splines is set on the first flat key, worm shaft end back-up ring is fixed on worm shaft front end through worm shaft by worm shaft end gib screw, and worm shaft end back-up ring is pressed in male splines and puts.When worm shaft is subject to axial force to the right, worm shaft has the trend moved right, worm shaft end back-up ring by outer spline sleeve pass to the first disc spring finally axial force transmission to axial force transducer.
As preferred version of the present utility model, worm screw stationary installation comprises the oil sealing be successively set on from front to back on worm shaft, lining and circlip.Oil sealing is used for sealing the lubricating oil of main casing, in case lubricating oil flows into the cavity that axial force transducer is housed.The periphery of lining and worm shaft mount pad are transition fit, and inner headed face is clearance fit with worm shaft, mainly supporting role.Left surface and the lining of back-up ring fit, and prevent lining from sliding axially.
As preferred version of the present utility model, described hand wheel shaft assembly comprises handwheel, handwheel end is connected with hand wheel shaft by the second flat key, the second lining is provided with in hand wheel shaft housing, second lining and hand wheel shaft housing are linked together by transition fit, and hand wheel shaft front end is fixedly connected with handwheel through the second lining, end is by straight pin and inner spline housing) be connected.Hand wheel shaft assembly mainly the transmission of torque suffered by handwheel to worm shaft.The torque that people is applied to handwheel passes to hand wheel shaft by the second flat key be connected with handwheel, by straight pin, hand wheel shaft says that transmission of torque is on inner spline housing, inner spline housing passes to the male splines be meshed with it again, and male splines cover finally passes to worm shaft by the second flat key be attached thereto again.
The utility model valve actuator handwheel utilizes axial force transducer to carry out alternative original mechanical force measurer, accurately can measure the size of axial force suffered by worm shaft, measuring accuracy by the impact of temperature, does not realize the partial installation of handwheel simultaneously, improves efficiency of assembling.
Accompanying drawing explanation
Fig. 1 is the cut-open view of the utility model valve actuator handwheel.
Fig. 2 is the utility model valve actuator handwheel A portion enlarged drawing.
Embodiment
As shown in Figure 1, 2, the utility model valve actuator handwheel, the dynamometry assembly comprising hand wheel shaft assembly and be connected with hand wheel shaft assembly.
Hand wheel shaft assembly comprises hand 3, handwheel 3 end is connected with hand wheel shaft housing 5, is provided with the second lining 4, second lining 4 and is linked together by transition fit with hand wheel shaft housing 5 in hand wheel shaft housing 5, then block with the second circlip 6, prevent lining 4 from moving axially.Hand wheel shaft 7 is linked together with handwheel 3 by the second flat key 25 being positioned at hand wheel shaft 7 front portion through lining 4, and hand wheel shaft 7 top is fixed on handwheel 3 outer end by the second gib screw 2 handwheel terminal block circle 1, moves axially to prevent handwheel 3.Hand wheel shaft 7 end is fixed together by straight pin 24 and inner spline housing 12, and then overlap 8 with male splines and be connected, and male splines overlaps both 8 and inner spline housing 12 and can slide axially.
Dynamometry assembly comprises the worm screw mount pad 18 be arranged on main casing 17, is provided with worm shaft 15 in worm screw mount pad 18, is provided with and measures sensing mechanism and worm screw stationary installation between worm shaft 15 and worm screw mount pad 18.
Worm screw stationary installation comprises the oil sealing 13 be successively set on from front to back on worm shaft 15, lining 16 and circlip 14.
Measure sensing mechanism comprise the end sensing device that is positioned at worm shaft 15 front end and be positioned at the middle part sense measuring device matched with end induction device in the middle part of worm shaft 15.
End sensing device comprises male splines cover 8, worm shaft end gib screw 9, worm shaft end back-up ring 10, first flat key 11 and inner spline housing 12, first flat key 11 is arranged in the keyway of worm shaft 15 front portion, male splines cover 8 is nested with at the first flat key 11 outside, worm shaft end back-up ring 10 is fixed on worm shaft 15 front end by worm shaft end gib screw 9, and worm shaft end back-up ring 10 is pressed on male splines cover 8.When worm shaft 15 is subject to axial force to the right, worm shaft 15 has the trend moved right, worm shaft end back-up ring 10 by outer spline sleeve pass to the first back-up ring 23 finally axial force transmission to axial force transducer 19.
Middle part sense measuring device comprises the axial force transducer 19 be nested with in the middle part of worm shaft 15, is respectively arranged with the first detecting means and the second detecting means in axial force transducer 19 left and right sides.
First detecting means comprises the first needle thrust bearing 22, first disc spring 21 and the first back-up ring 23 be nested with on worm shaft 15, first needle thrust bearing 22 is positioned on the left of axial force transducer 19, and the first back-up ring 23 is pressed on the first needle thrust bearing 22 from left side by the first disc spring 21.First disc spring 21 is impacted to reduce.Worm shaft mount pad 18 front end is provided with sensor gland 20, and axial force transducer 19 is fixed on worm shaft mount pad 18 from left side by sensor gland 20.Because the outer ring of axial force transducer 19 is fixed by sensor gland 20, the Internal and external cycle of axial force transducer 19 is had by the trend compressed, thus induces the size of axial force.Second detecting means comprises the second needle thrust bearing 26, second disc spring 28 and the second back-up ring 27 be nested with on worm shaft 15, second needle thrust bearing 26 is positioned on the right side of axial force transducer 19, and the second back-up ring 27 is pressed on the second needle thrust bearing 26 from right side by the second disc spring 28.Second disc spring 28 is impacted to reduce.
The principle of work of the utility model valve actuator handwheel is:
When worm shaft 15 is subject to axial force left, worm shaft 15 has the trend to left movement, its shaft shoulder will be pressed onto the second disc spring 28 on worm shaft 15, second disc spring 28 can by the second back-up ring 27, second needle thrust bearing 26 axial force transmission to axial force transducer 19 inner ring, the outer ring of axial force transducer 19 is fixed by sensor gland 20, the Internal and external cycle of axial force transducer 19 is made to have by the trend compressed, a resistance is induced after axial force transducer 19 is stressed, resistance size is judged by central processing unit, thus draw the size of axial force.
When worm shaft 15 be subject to axial force to the right time, worm shaft 15 has the trend moved right, worm shaft end back-up ring 10 overlaps the 8, first disc spring 21, first back-up ring 23, first needle thrust bearing 22 axial force transmission to the inner ring of axial force transducer 19 by male splines, the outer ring of axial force transducer 19 is fixed by worm shaft mount pad 18, the Internal and external cycle of axial force transducer 19 is had by the trend compressed, thus induces the size of axial force.
Hand wheel shaft assembly mainly the transmission of torque suffered by handwheel 3 to worm shaft 15.The torque that people is applied to handwheel 3 passes to hand wheel shaft 7 by the second flat key 25 be connected with handwheel 3, hand wheel shaft 7 transmits torque on inner spline housing 12 by straight pin 24, inner spline housing 12 passes to the male splines cover 8 be meshed with it again, and male splines cover 8 finally passes to worm shaft 15 by the first flat key 11 be attached thereto again.
The installation method of the utility model valve actuator handwheel is as follows:
A, by oil sealing 13, lining 16 and circlip 14 from front to back successively load worm shaft mount pad 18 rear portion;
B, worm shaft 15 is penetrated worm shaft mount pad 18;
C, the first disc spring 21, first back-up ring 23 and the first needle thrust bearing 22 are nested with successively from the inside to the outside on worm shaft 15, the first needle thrust bearing 22 contacts with on the left of axial force transducer;
D, the second back-up ring 27, second disc spring 28, second needle thrust bearing 26 and axial force transducer 19 to be nested with from the inside to the outside successively in the middle part of worm shaft 15;
E, cover sensor gland 20, sensor gland 20 is pushed down axial force transducer 19 from left side and is fixed on worm shaft mount pad 18;
F, the first flat key 11 is loaded in the keyway of worm shaft 15, be nested with outside the first flat key 11 and male splines cover 8 is installed;
Worm shaft back-up ring 10 is fixed on worm shaft 15 end by h, worm shaft end gib screw 9;
I, finally by worm shaft mount pad 18 by bolt load main casing 17, realize the partial installation of described mechanism.
Below by reference to the accompanying drawings preferred implementation of the present utility model is elaborated, but the utility model is not limited to above-mentioned embodiment, in the ken that art technician possesses, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (9)
1. a valve actuator handwheel, it is characterized in that: the dynamometry assembly comprising hand wheel shaft assembly and be connected with hand wheel shaft assembly, described dynamometry assembly comprises the worm shaft mount pad (18) be arranged on main casing (17), in worm shaft mount pad (18), be provided with worm shaft (15), be provided with between worm shaft (15) and worm shaft mount pad (18) and measure sensing mechanism and worm screw stationary installation.
2. valve actuator handwheel according to claim 1, is characterized in that: described measurement sensing mechanism comprises the end sensing device that is positioned at worm shaft (15) front end and is positioned at the middle part sense measuring device matched with end sensing device at worm shaft (15) middle part.
3. valve actuator handwheel according to claim 2, it is characterized in that: described middle part sense measuring device comprises the axial force transducer (19) be nested with at worm shaft (15) middle part, is respectively arranged with the first detecting means and the second detecting means in axial force transducer (19) left and right sides.
4. valve actuator handwheel according to claim 3, it is characterized in that: described first detecting means comprises the first needle thrust bearing (22) be nested with on worm shaft (15), the first back-up ring (23) and the first disc spring (21), first needle thrust bearing (22) is positioned at axial force transducer (19) left side, and the first back-up ring (23) is pressed on the first needle thrust bearing (22) from left side by the first disc spring (21).
5. valve actuator handwheel according to claim 4, it is characterized in that: described second detecting means comprises the second needle thrust bearing (26) be nested with on worm shaft, the second back-up ring (27) second disc spring (28), second needle thrust bearing (26) is positioned at axial force transducer (19) right side, and the second back-up ring (27) is pressed on the second needle thrust bearing (26) from right side by the second disc spring (28).
6. valve actuator handwheel according to claim 5, it is characterized in that: also comprise sensor gland (20), sensor gland (20) is arranged on worm shaft mount pad (18) front end, is fixed on worm shaft mount pad (18) by axial force transducer (19) from left side.
7. valve actuator handwheel according to claim 2, it is characterized in that: described end sensing device comprises inner spline housing (12), worm shaft end gib screw (9), worm shaft end back-up ring (10), first flat key (11) and male splines cover (8), first flat key (11) is arranged in the anterior keyway of worm shaft (15), it is outside that male splines cover (8) is arranged on the first flat key, worm shaft end back-up ring (10) is fixed on worm shaft (15) front end through male splines cover (8) by worm shaft end gib screw (9), worm shaft end back-up ring (10) is pressed on male splines cover (8).
8. valve actuator handwheel according to claim 1, it is characterized in that: described worm screw stationary installation comprises the oil sealing (13) be successively set on from front to back on worm shaft (15), lining (16) and circlip (14), circlip (14) outer ring is stuck on worm shaft mount pad (18), and inner ring is pressed on lining (16).
9. valve actuator handwheel according to claim 7, it is characterized in that: described hand wheel shaft assembly comprises handwheel (3), handwheel (3) end is connected with hand wheel shaft (7) by the second flat key (25), the second lining (4) is provided with in hand wheel shaft housing (5), second lining (4) and hand wheel shaft housing (5) are linked together by transition fit, and hand wheel shaft (7) front end is fixedly connected with handwheel (3) through the second lining (4), end is connected with inner spline housing (12) by straight pin (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369159.6U CN204229283U (en) | 2014-07-07 | 2014-07-07 | Valve actuator handwheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369159.6U CN204229283U (en) | 2014-07-07 | 2014-07-07 | Valve actuator handwheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204229283U true CN204229283U (en) | 2015-03-25 |
Family
ID=52927355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420369159.6U Expired - Fee Related CN204229283U (en) | 2014-07-07 | 2014-07-07 | Valve actuator handwheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204229283U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104156031A (en) * | 2014-07-07 | 2014-11-19 | 中原工学院 | Handwheel mechanism for valve actuator |
| CN109857187A (en) * | 2018-12-29 | 2019-06-07 | 南京拓耘达智慧科技有限公司 | A kind of Electric Actuator handwheel switching mechanism and switching method |
-
2014
- 2014-07-07 CN CN201420369159.6U patent/CN204229283U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104156031A (en) * | 2014-07-07 | 2014-11-19 | 中原工学院 | Handwheel mechanism for valve actuator |
| CN104156031B (en) * | 2014-07-07 | 2016-07-27 | 中原工学院 | Valve actuator handwheel |
| CN109857187A (en) * | 2018-12-29 | 2019-06-07 | 南京拓耘达智慧科技有限公司 | A kind of Electric Actuator handwheel switching mechanism and switching method |
| CN109857187B (en) * | 2018-12-29 | 2020-06-09 | 南京拓耘达智慧科技有限公司 | Hand wheel switching mechanism and switching method of electric actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20150707 |
|
| EXPY | Termination of patent right or utility model |